The Hot Chillys Mid Weight Print Crewneck Girls Long Undrewear is too cute to wear under layers, this is a crewneck that looks sweet waering it alone. This is absolutely the best first layer for any outdoor activity that requires added warmth for playful lifestyles! When your girly girl is skiing, snowboarding or involving herself in any cold weather activites - layer her up so she is prepared for unexpected change in weather. She will love the cute design and soft additional warmth that The Hot Chillys Mid Weight Crewneck provides. Great for PJ's too!